EVENT 106 Boy/Girl 12 /Under 200m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Amelia MATSON | 9 | Co Leeds | 4:00.00 |
| 4 | 3 | Holly HARRISON | 11 | Co Leeds | 3:41.64 |
| 5 | 2 | Samuel HILL | 12 | Co Leeds | 3:59.97 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 5 | Scarlett CLARKSON | 11 | Co Leeds | 3:35.50 |
| 1 | 7 | Jackson CLARKE | 11 | Co Leeds | 3:29.75 |
| 2 | 9 | Aira WILKINSON | 12 | Co Leeds | 3:04.68 |
| 3 | 11 | Matilda POTTER | 12 | Co Leeds | 2:54.02 |
| 4 | 13 | Alice AITKEN | 12 | York City | 2:50.90 |
| 5 | 12 | Isabel HANDLEY | 12 | Co Leeds | 2:52.05 |
| 6 | 10 | Caitlyn SMITH | 12 | Co Leeds | 2:56.71 |
| 7 | 8 | M AZANA-BALL | 10 | Co Leeds | 3:22.70 |
| 8 | 6 | Isaac FOY | 12 | Co Leeds | 3:34.84 |
| 9 | 4 | Anabella CHAMBERS | 12 | Co Leeds | 3:39.52 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 15 | Joseph HALL | 12 | Co Leeds | 2:46.05 |
| 1 | 17 | Megan TRAVIS | 12 | Co Leeds | 2:41.68 |
| 2 | 19 | Valeria PINERA-LEVITA | 12 | Co Leeds | 2:39.90 |
| 3 | 21 | Sophie RAMSHAW | 12 | Co Leeds | 2:38.69 |
| 4 | 23 | Darcey CROSSLEY | 12 | Co Leeds | 2:28.58 |
| 5 | 22 | Millie THRELFALL | 12 | Co Leeds | 2:29.87 |
| 6 | 20 | Liliah VINCENT | 12 | Co Leeds | 2:39.79 |
| 7 | 18 | Elizabeth DIXON | 12 | Co Leeds | 2:40.00 |
| 8 | 16 | William HICKLIN | 12 | Co Leeds | 2:43.50 |
| 9 | 14 | Asher MAXFIELD | 12 | Co Leeds | 2:50.37 |